feat: include access to ska array postions via ska-ost-array-config p…

…ackage

src/py21cmsense/observatory.py

@@ -228,7 +228,7 @@ def from_ska(
         cls,
         subarray_type: str,
         array_type: str = "low",
-        Trcv: tp.Temperature | Callable = 100 * un.K,
+        Trcv: tp.Temperature | Callable = 100 * un.K, # noqa N803
         frequency: tp.Frequency | None = 150.0 * un.MHz,
         **kwargs,
     ) -> Observatory:
@@ -252,7 +252,7 @@ def from_ska(
         Other Parameters
         ----------------
         All other parameters passed will be passed into the LowSubArray or MidSubArray class.
-        See the documentation of the ska-ost-array-config package for more information on these classes.
+        See the documentation of the ska-ost-array-config package for more information.
         """
         try:
             from ska_ost_array_config.array_config import LowSubArray, MidSubArray

tests/test_observatory.py

@@ -224,8 +224,9 @@ def test_from_ska():
             exclude_stations="C1,C2",
         )
     low_custom = LowSubArray(
-        subarray_type="custom", custom_stations="C*,E1-*", exclude_stations="C1,C2"
-    )  # selects all core stations and 6 stations in the E1 cluster and exclude core stations C1 and C2
+        subarray_type="custom", 
+        custom_stations="C*,E1-*", exclude_stations="C1,C2"
+    )  # selects all core stations, 6 stations in the E1 cluster, excludes core stations C1 and C2
     assert obs.antpos.shape == low_custom.array_config.xyz.data.shape